CVE-1999-1559
Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D ...
Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D (control d) character, which locks other users out of the switch because it only supports one session at a time.
Exploit likelihood
What each source reports
NVD Score used
Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D (control d) character, which locks other users out of the switch because it only supports one session at a time.
- Record
CVE-1999-1559- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D (control d) character, which locks other users out of the switch because it only supports one session at a time.
- Record
CVE-1999-1559- Updated
- 2026-11-02
EUVDEUVD-1999-1540 No score
Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D (control d) character, which locks other users out of the switch because it only supports one session at a time.
- Record
EUVD-1999-1540- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j2j2-54qm-hh8q No score
Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D ...
Xylan OmniSwitch before 3.2.6 allows remote attackers to bypass the login prompt via a CTRL-D (control d) character, which locks other users out of the switch because it only supports one session at a time.
- Record
GHSA-j2j2-54qm-hh8q- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-1999-1559 is a medium vulnerability (CVSS 5.0) in Alcatel Omniswitch, published March 31, 1999. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.65%, the 76th percentile. No source names a fixed version.